# Zacatecas Silver Reports High-Grade Gold and Silver Surface Sampling Over 2 km Strike Length at Oso Negro, Sonora Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/zacatecas-silver-reports-high-grade-gold-and-silver-surface-sampling-over-2-km-s--aeea6495-e66a-4fb4-afb9-0ca598246b32 Original source: https://money.tmx.com/en/quote/ZAC/news/5907729709492720/zacatecas-silver-reports-high-grade-gold-and-silver-surface-sampling-over-2-km-s Publisher: tmx Original announcement: 2026-06-09T10:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Zacatecas Silver Corp. - Ticker: ZAC - Exchange: TSX - Region: Sonora, Mexico - Primary commodity: Gold - Secondary commodities: Silver, Lead, Zinc - Document categories: Drill results - Extracted: 2026-09-17 06:37:45 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Zacatecas Silver reported high-grade gold and silver surface rock-chip sampling at the Oso Negro project in Sonora, Mexico. Results include up to 14.8 g/t Au and 2,340 g/t Ag across a 2 km strike length, with geological indicators suggesting higher grades may exist at depth below the boiling zone. Reasoning: Strong high-grade surface results across a significant strike length in a prospective epithermal system, with geological indicators suggesting significant upside at depth. - Positive factor: High-grade surface sampling \(14.8 g/t Au, 2,340 g/t Ag\) - Positive factor: Significant strike length \(2 km\) - Positive factor: Geological context suggests higher grades at depth \(above boiling zone\) - Positive factor: QA/QC protocols disclosed \(ALS, CRMs, blanks, duplicates\) Facts used in scoring: 2 ## Classification and evidence **Bonanza Intercept** Polarity: positive Definition: Exceptionally high-grade zone, well above the deposit-type norm. Why it applies: 14.8 g/t Au and 2,340 g/t Ag are exceptionally high for an epithermal system. Evidence · text > Up to 14.8 g/t Au and 2,340 g/t Ag returned from surface rock-chip sampling **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: Release mentions ALS laboratory, CRMs, blanks, and field duplicates. Evidence · text > The Company inserted certified reference materials, blanks and field duplicates into the sample stream **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: Results demonstrate system-scale continuity over a 2 km strike length. Evidence · text > High-grade results confirmed across a minimum 2 km combined strike length ## Extracted facts Stored fact records: 2. Some facts used in scoring do not have a stored record. ## Drill Results (2) ### Fact 1 [Link to this fact](https://atlas-extractions.minestarters.com/news/zacatecas-silver-reports-high-grade-gold-and-silver-surface-sampling-over-2-km-s--aeea6495-e66a-4fb4-afb9-0ca598246b32#fact-drill-facts-0) Oso Negro · gold #### Identity - Project: Oso Negro - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: ZAC #### Geometry - Grade: 14.8 - Grade Unit: g/t #### Classification - Sample Type: surface #### Location - Location: Oso Negro - Loc. Source: document #### QA/QC - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-09T00:00:00.000Z Reasoning: Exceptional gold grade from surface sampling. - Positive factor: High grade intercept Evidence · text > Up to 14.8 g/t Au #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### Fact 2 [Link to this fact](https://atlas-extractions.minestarters.com/news/zacatecas-silver-reports-high-grade-gold-and-silver-surface-sampling-over-2-km-s--aeea6495-e66a-4fb4-afb9-0ca598246b32#fact-drill-facts-1) Oso Negro · silver #### Identity - Project: Oso Negro - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: ZAC #### Geometry - Grade: 2340 - Grade Unit: g/t #### Classification - Sample Type: surface #### Location - Location: Oso Negro - Loc. Source: document #### QA/QC - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-09T00:00:00.000Z Reasoning: Exceptional silver grade from surface sampling. - Positive factor: High grade intercept Evidence · text > 2,340 g/t Ag #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.